Developers got a clear picture of what the phone is going to look like, because the user interface which will be applied to the phone was revealed as well.

Called the One UI, it's described as a clean and minimal design... keeping the most relevant content on the bottom of the screen for one-handed use.

Before its official launch in January, Samsung is first making the One UI available to people in South Korea and the U.S. for beta testing in November.

The software will be available in devices including the Galaxy S9, S9 Plus and Galaxy Note 9.

The conference provided opportunities for Samsung to garner opinions as the new technologies will require developers to tweak apps to make sure they run smoothly when the new phone hits stores.

"I think we've all been waiting for the foldable phone for at least a year now so it's nice to actually see, at a developers conference, that there were specs, there was something being held, that there was an opportunity to really build for because it's not going to be exciting if there are no apps that work for it when it does come out."